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Tribune photo by Scott Strazzante

Chicago Cubs' greats (left to right) Ron Santo, Billy Williams and Ernie Banks greet each other during a ceremony retiring Ferguson Jenkins' and Greg Maddux' number 31 before Cubs' game against Florida Marlins at Wrigley Field on Sunday.

Chicago Cubs' greats (left to right) Ron Santo, Billy Williams and Ernie Banks greet each other during a ceremony retiring Ferguson Jenkins' and Greg Maddux' number 31 before Cubs' game against Florida Marlins at Wrigley Field on Sunday. (Tribune photo by Scott Strazzante)

Chicago Cubs' greats (left to right) Ron Santo, Billy Williams and Ernie Banks greet each other during a ceremony retiring Ferguson Jenkins' and Greg Maddux' number 31 before Cubs' game against Florida Marlins at Wrigley Field on Sunday.